Reflector.



PATENTEDNOV. 27, 1906. A. M GOY & W. S. KUTSGHBR.

REFLECTOR.

APPLICATION FILED JUNE 20, 1906.

WITNESSES.

Wat MW UNITED sTATEs OFFICE.

WILBER A. MCCOY AND -WILLIAM s. KUTSCHER, or ALLEGHENY, PENNSYLVANIA,

REFLECTOR.

Specification of Letters Patent.

rammed Nov. 27, 1906.

Application filed June 20,1906. Serial No. 322,514.

.and WILLIAM S. KUTSCHER, citizens of the United States, residing in thecity of Allegheny, in the county of Allegheny and State of Pennsylvania,have invented or discovered new and useful Improvements in Reflectors,of which the following is a specification.

Our invention consists in a new and improved shade or reflector for usein connection with oil, gas, electric, or other character of light. Itis made of thin metal, preferably stamped integrallyfrom a sheet ofaluminium, and adapted to be sustained in its operative position bydirect contact by the edge of thin metal upon the glass of the lampchimney or globe, the metal being so stamped or bent that its thinunfinished edge impinges directly upon the glass. The thinness of themetal permits it to readily accommodate itself to the temperature of theglass, so that the same is not cracked by the adjustment of the shade orits expansion or contraction under varying temperatures.

WVe find aluminium especially adapted for our purpose, as it readilyaccommodates itself to the temperature of the glass, and at the sametime the body of the shade does not become overheated. It is alsopeculiarly useful, as it has a natural reflecting-surface of highefficiency which does not become des'troyed or clouded by the hightemperature to which it may be subjected.

We prefer to form the reflector as the frustum of a flattened pyramidhaving any desired number of sides ,or reflecting-faces. In the drawingstwelve faces are shown; but the number may be varied as desired or thereflecting-surface be a plane conical one. We prefer to make both theupper and lower surfaces of the shade as reflectors, so that the lightwill be thrown both upward and downward, if desired.

In the accompanying drawings, Figure 1. is a side elevation of ourreflector mounted on a incandescent electric light, while Fig. 2 is avertical section of the same mounted on the chimney or globe of anincandescent gaslight.

The following is a detailed description of the drawings.

1 is a multiple reflector or shade, preferably stamped integrally from athin sheet of metal, such as aluminium, in substantially the formandcontour shown, having a plurality of reflecting-faces 2 2. I Theouter edge 3 of said reflector is preferably annular and turned orrolled up to form a bead which serves both to give a finished appearanceand to strengthen and stiflen the thin metal. The metal of the reflectoradjacent to the central opening 4 is preferably first bent or struck upin an annular collar 5 to clear the glass of the globe or chimney andthen bent inwardly to form the ring 6, substantially horizontal, whosethin edge impinges directly against the glass of the chimney or globeand supports the reflector in place.

It is evident that the only portion of the metal which touches the glassis this thin edge, which readily accommodates itself to the temperatureof the glass, and thus avoids cracking or rupturing the same. Thesereflectors are made of different sizes and having different-sized'central openings 4 to adapt them to different requirements. Thus ashade for an electric globe, as shown in Fig. 1, is preferably ofsmaller area than a gaslight illustrated in Fig. 2, the central openingsbeing proportioned for the uses in view. Thus the central opening 4 ofthe shade shown in Fig. 1 is of the proper size to fit over the shank ofthe electric globe 7 before the same is screwed or inserted into itssocket 8. In the case of the gas-light shown in Fig. 2 the shade isprovided with a larger opening 4 to fit down the desired distance on thechimney or globe 9, the thin edge of the metal resting on the glass ofthe chimney. In the latter case we prefer to permit the shade to descendfar enough onthe chimney so that the light is reflected downwardly bythe lower surface and diffused and reflected up- -wardly and outwardlythrough the room or apartment by the upper surface, thus effecting adouble reflection.

Among the advantages of our improved shade may be mentioned thefollowing: It needs no support, such as a wire frame or asbestos ring,but may be rested directly on the glass without fear of breakage, itssimplicity of construction renders it much cheap er than the forms ofshades now in use, and it is practically indestructible. Thereflecting-surfaces run up to the chimney, so that no light is allowedto flow upwardly between the chimney and the shade; but the fullillumination is caught by the shade and reflected.v

What We desire to claim is as follows:

1. In lighting, a reflector stamped integrally of a sheet of thin metaland consisting of an inclined reflecting portion with a rigid integralsubstantially horizontal ring inturned around the central opening sothat the thin edge of the metal impinges against the chimney or globe,substantially as and for the purpose set forth.

2. In lighting, a reflector stamped integrally from a sheet of thinmetal, having an inclined reflecting portion and stiffened by forming arigid integral substantially vertical ring and a rigid integralsubstantially horizontal ring of said material surrounding the centralopening, substantially as and for the purpose set forth.

Signed at Allegheny, Pennsylvania, this 19th day of June, 1906.

WILBER A. MCCOY. WILLIAM S. KUTSOHER.

Witnesses:

W. H. STERRITT, H. L. Ross

